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http://dx.doi.org/10.17137/Korrae.2011.19.2.5

A Study on the Remediation using Microbial Activator from Oil-Contaminated Soil  

Lee, Chae-Young (Department of Civil Engineering, The University of Suwon)
Chung, Chan-Kyo (Department of Environmental and energy engineering, The University of Suwon)
Kim, Jong-Moon (Department of Environmental and energy engineering, The University of Suwon)
Publication Information
Journal of the Korea Organic Resources Recycling Association / v.19, no.2, 2011 , pp. 41-48 More about this Journal
Abstract
In this study, the soil remediation by landfarming was carried out using microbial activators. Feasibility studies and reduction capacity of TPH(Total Petroleum Hydrocarbons) were investigated in order to find out how fast and eco-friendly the contaminated soil can be recovered. The lab-test confirmed not only the performance and degradation efficiency of microbial activators but also the effect of TPH reduction in the contaminated soil. The optimum growth conditions for indigenous microorganisms were identified using microbial activators. Based on the results of TPH removal, although there had been a little of difference in between natural decomposition and microbial activators until 20 days, the sample groups of microbial activators were higher than the control ones after 20 days. Microbial activators were applied to the field experiments on landfarming. Based on the results of removal rate in each floor of soil, it was found that the removal rates were 85.8 % in the upper, 84.4 % in the middle, and 66.10 % in the bottom. Considering that the reduction rate of TPH for the control group averaged 71.1%, the microbial activators might not be fully transferred into the bottom, which resulted from the piles of soil. As the piles have already reached 1 m in the field experiments, the low piles of soil under 0.6 m may enhance the treatment efficiency of TPH.
Keywords
Total Petroleum Hydrocarbon(TPH); Soil Contamination; Microbial Activator;
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